Parveez, Bisma and Jamal, Nur Ayuni and Kusuadi, Nur Izzah Nazurah and Aabid, Abdul and Baig, Muneer (2024) Effects of diamond content on the morphology and compressive properties of porous aluminum composites. ACS Omega, 9 (34). pp. 36690-36698. E-ISSN 2470-1343
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Abstract
Porous aluminum (Al) is popular due to its lightweight properties and impact energy absorption. However, it often has a lower mechanical strength than solid Al. To improve the performance, diamond reinforcement was introduced into the matrix. Further, addressing the challenge of interfacial bonding between Al and diamond, coated diamond with varying contents of 5, 10, 15, and 20wt % was added to the porous Al alloy matrix via the powder metallurgy technique. The porosities were formed by using poly-(methyl methacrylate) (30 wt %) as a space holder. The densities of the resultant porous composites ranged from 2.20 to 2.37 g/cm3 and porosities ranged from 33 to 38% for 5−20 wt % diamond contents. Furthermore, the yield strength and plateau stress increased from21.47 to 29.46 MPa and 14 to 20 MPa, respectively, up to 10 wt %diamond content but declined upon further addition. Similarly, the energy absorption capacity increased from 2.15 to 2.95 MJ/m3up to 10 wt % diamond content and thereafter decreased. Thus, the addition of coated diamond and alloying elements in Al strengthened the porous Al composites, making it suitable for applications requiring good compressive strength and energy absorption capacity
| Item Type: | Article (Journal) |
|---|---|
| Uncontrolled Keywords: | Alloys, Carbon, Composites, Organic compounds, Porosity |
| Subjects: | Q Science > Q Science (General) T Technology > TJ Mechanical engineering and machinery |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering Kulliyyah of Engineering |
| Depositing User: | Dr Nur Ayuni Jamal |
| Date Deposited: | 13 Feb 2025 10:03 |
| Last Modified: | 13 Feb 2025 10:03 |
| URI: | http://irep.iium.edu.my/id/eprint/119351 |
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